Suggest you Keep the already excellent Merlins and get TWO better subs. Perhaps the Vandersteen 2wq model.
All it seems you are wanting is the low end that the Merlins are not providing. However they are about as good as it gets the part of the audio spectrum that they do cover.
Good luck!
All it seems you are wanting is the low end that the Merlins are not providing. However they are about as good as it gets the part of the audio spectrum that they do cover.
Good luck!